CA2190814A1 - Tubular casing with glued splice and method for its manufacture - Google Patents
Tubular casing with glued splice and method for its manufactureInfo
- Publication number
- CA2190814A1 CA2190814A1 CA002190814A CA2190814A CA2190814A1 CA 2190814 A1 CA2190814 A1 CA 2190814A1 CA 002190814 A CA002190814 A CA 002190814A CA 2190814 A CA2190814 A CA 2190814A CA 2190814 A1 CA2190814 A1 CA 2190814A1
- Authority
- CA
- Canada
- Prior art keywords
- casing
- film material
- splice
- weight percent
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0013—Chemical composition of synthetic sausage casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1324—Flexible food casing [e.g., sausage type, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1348—Cellular material derived from plant or animal source [e.g., wood, cotton, wool, leather, etc.]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A method for adhering tubular casing material containing at least 25 weight percent water, during the process of its manufacture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from 250 to 1000 cps, to a surface of the casing or of a separate film material, and squeezing the casing surface and the film material together to form a bond. The invention also includes bonds and splices made in accordance with the method of the invention.
Description
21gO814 TPP:581 US
TUBULAR CASING WITH GLUED SPLICE
AND METHOD FOR ITS MANUFACTURE
Background of the Invention This invention relates to tubular c~ing~, especially such c~cing~ as are used for 5 encasing food products such as meats and cheeses. The invention more particularly relates to tubular c~ing~ which comprise regenerated cellulose or collagen and to splices made in such c~sing~ either to connect casing sections or to close openings made in the casings during processing.
In the prior art, during m~nllf~cture, C~ing~ were sometimes slit to permit 10 acc~lm~ ted liquids and gases to escape from the interior. These slits then needed to be sealed to retain inflation by air for the purposes of curing. In the absence of air, the casing would deflate and create problems with self adhesion and irregular dry diameters. The slits were frequently sealed by removing the slit section of the casing and inserting couplers into the resulting open ends of the casing prior to entry of 15 casing into the dryer. The couplers were removed after the dryer and the openings were sealed with splicing tape.
Before the present invention using tape to seal the open ends together was considered difficult, if not impossible, due to the fact that it is exceedingly difficult to get glue to adhere to a wet substrate such as an undried gel used in casing m~mlf~cture 20 and in any case forming such splices upon wet casing material could not be done automatically.
219081g Brief Description of the Drawings Figure 1 is a plan view of a layout for m~king a "butt" splice in accordance with the present invention.
Figure 2 is a cross sectional top view of a "butt" splice made in accordance with the present invention.
Brief Description of the Invention In accordance with the present invention a method is provided for forming an adhesive bond with an undried casing material during its process of m~mlf~cture. The present method is particularly applicable for forming splices between open ends of tubular sections of the casing which according to the method of the invention can be done automatically.
More particularly the invention comprises a method for adhering tubular casing material cont~ining at least 25 weight percent water, during the process of its m~nllf~cture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from 250 to 1000 cps, to a surface of the casing or of a separate film material, and squeezing the casing surface and the film material together to form a bond. The film material may be additional casing material which is either in its original tubular shape or which has been slit along a longitudinal line to form a flat film material.
The foregoing steps can be done automatically by any suitable means, e.g. the casing material can be automatically cut by an air or electrically actuated knife at preset time intervals or upon detection of passage of a pred~ellllined length of casing.
Beads of adhesive can then be automatically applied to the film material by an air 21gO814 actuated applicator. The casing material can be automatically placed on the filmmaterial surface and squeezed together by pressure rolls or plates.
The surface is the combined exterior surfaces surrounding two abutting open ends of the casing and the film material is a single piece encompassing both exterior surfaces to form a splice between the open ends.
Both the casing material and film material may comprise regenerated cellulose.
The casing m~t~n~l may be reinforced with fibers, such as cellulose fibers from hemp, or may be unreinforced regenerated cellulose film or collagen. The film material is usually unLeillforced regenerated cellulose film, and may also be fiber reinforced cellulose, collagen or other suitable film.
The adhesive preferably has a viscosity of from about 300 to about 700 cps.
The viscosity is usually controlled by the presence of a small amount, e.g. from 3 to 15 weight percent, of a polymeric material such as polymethylmethacrylate.
A preferred adhesive comprises from 87 to 92 weight percent ethyl cyanoacrylate, from 5 to 10 weight percent poly methyl methacrylate, from 0.1 to 1.0 weight percent phthalic arlhydride and from 0.1 to 0.5 weight percent hydroquinone.
The invention includes the bonds and splices manufactured by the method of the invention.
Detailed Description of the Invention In accordance with the present invention, many bonds may be made; however, a splice having particularly good characteristics, herein called the "butt" splice, can be made using the method of the invention.
The "butt" splice was derived from initial attempts at covering the cut in the cellulose product with a tape or patch material. This method produced a buL~y splice 219081~
that created problems in later operations, such as shirring. For this reason, a smaller, less buLky splice was desired. The "butt" splice method took much testing as it was found that the exact amount of Cyanoacrylate adhesive placed in very specific areas, on the splicing material, was critical.
The "butt" type splice is made by precutting a film material such as a hydrophilic material capable of being moisturized to between 30% and 60% water content. Examples of this material could be reinforced or unreinforced cellulose type products. This material should be cut wide enough to cover all glue patterns, e.g. ll/2 to 4 inches in width with the length being determined by the code size being spliced together.
The film material is then premoisturized to a moisture content of between 30%
and 60%. Free water on the surface should be removed to reduce the chance of theadhesive curing before the splice can be completed.
The moisturized film material can then be placed on a folding device that will enable the film material to be folded over the product, e.g. wet cellulose, being spliced together.
The adhesive is then either manually or automatically applied to the film material in a predetermined location, e.g. six beads approximately 1/64" to 1/32" in width. The location (distance apart l/2" to 2l/2") of the two beads running longitudinal with the wet product being spliced varies depending on the casing diameter. The four beads running across the cellulose product being spliced should be consistent (distance apart 1/4'' to l/2") for all sizes but the length of the beads vary from one inch to three inches.
219û81~
The ends of the two, e.g. cellulose, casing pieces are "butted" together between the two inner cross beads of adhesive, on the film material. This step can be either m~m1~l or automated.
With the aid of the folding device the film material is then folded over the 5 "butted" ends, of cellulose product, m~king an airtight seal.
The completed splice is then removed from the folding device, either m~ml~lly or automatically, and allowed to continue through the process.
The "butt" type method also allows the splice to remain in the dried, reeled cellulose product until further processing is desired.
The "butt" splice of the invention has been found to be water and air tight.
A layout for m~king the "butt" splice 10 can be seen in Figure 1 where ends 12 and 14 of separate tubular sections 16 and 18 are abutted on the surface 20 of separate film material 22. The adhesive used in the invention is laid out in transverse beads 24, and longitudinal beads 26 and 28 upon surface 20. Film material 22 is then folded 15 around ends 12 and 14 along fold line 30 to form the butt splice. The finished "butt"
splice may be seen in Figure 2.
In m~king butt splices as described above, numerous ethyl cyanoacrylate adhesives were used with results as described in the table below.
~1908~4 TABLE
ADHESIVE VISCOSITY (cps) RESULT
Loctite* 405 300 Good Adhesion/Gas Tight Loctite 498 700 Good Adhesion/Gas Tight Henkel* T-500 500 Good Adhesion/Gas Tight Permabond* 795 500 GoodAdhesion/Gas Tight Permabond 792 75 Not Good/No Bead Control Loctite 401 100 Not Good/No Bead Control Henkel T-1500 1500 Not Good/Slow Cure Loctite 410 3500 Not Good/Slow Cure 15 * Loctite is a trademark of Loctite Corporation.
Henkel is a trademark of Henkel Corporation.
Permabond is a trademark of National Starch Chemical Company.
TUBULAR CASING WITH GLUED SPLICE
AND METHOD FOR ITS MANUFACTURE
Background of the Invention This invention relates to tubular c~ing~, especially such c~cing~ as are used for 5 encasing food products such as meats and cheeses. The invention more particularly relates to tubular c~ing~ which comprise regenerated cellulose or collagen and to splices made in such c~sing~ either to connect casing sections or to close openings made in the casings during processing.
In the prior art, during m~nllf~cture, C~ing~ were sometimes slit to permit 10 acc~lm~ ted liquids and gases to escape from the interior. These slits then needed to be sealed to retain inflation by air for the purposes of curing. In the absence of air, the casing would deflate and create problems with self adhesion and irregular dry diameters. The slits were frequently sealed by removing the slit section of the casing and inserting couplers into the resulting open ends of the casing prior to entry of 15 casing into the dryer. The couplers were removed after the dryer and the openings were sealed with splicing tape.
Before the present invention using tape to seal the open ends together was considered difficult, if not impossible, due to the fact that it is exceedingly difficult to get glue to adhere to a wet substrate such as an undried gel used in casing m~mlf~cture 20 and in any case forming such splices upon wet casing material could not be done automatically.
219081g Brief Description of the Drawings Figure 1 is a plan view of a layout for m~king a "butt" splice in accordance with the present invention.
Figure 2 is a cross sectional top view of a "butt" splice made in accordance with the present invention.
Brief Description of the Invention In accordance with the present invention a method is provided for forming an adhesive bond with an undried casing material during its process of m~mlf~cture. The present method is particularly applicable for forming splices between open ends of tubular sections of the casing which according to the method of the invention can be done automatically.
More particularly the invention comprises a method for adhering tubular casing material cont~ining at least 25 weight percent water, during the process of its m~nllf~cture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from 250 to 1000 cps, to a surface of the casing or of a separate film material, and squeezing the casing surface and the film material together to form a bond. The film material may be additional casing material which is either in its original tubular shape or which has been slit along a longitudinal line to form a flat film material.
The foregoing steps can be done automatically by any suitable means, e.g. the casing material can be automatically cut by an air or electrically actuated knife at preset time intervals or upon detection of passage of a pred~ellllined length of casing.
Beads of adhesive can then be automatically applied to the film material by an air 21gO814 actuated applicator. The casing material can be automatically placed on the filmmaterial surface and squeezed together by pressure rolls or plates.
The surface is the combined exterior surfaces surrounding two abutting open ends of the casing and the film material is a single piece encompassing both exterior surfaces to form a splice between the open ends.
Both the casing material and film material may comprise regenerated cellulose.
The casing m~t~n~l may be reinforced with fibers, such as cellulose fibers from hemp, or may be unreinforced regenerated cellulose film or collagen. The film material is usually unLeillforced regenerated cellulose film, and may also be fiber reinforced cellulose, collagen or other suitable film.
The adhesive preferably has a viscosity of from about 300 to about 700 cps.
The viscosity is usually controlled by the presence of a small amount, e.g. from 3 to 15 weight percent, of a polymeric material such as polymethylmethacrylate.
A preferred adhesive comprises from 87 to 92 weight percent ethyl cyanoacrylate, from 5 to 10 weight percent poly methyl methacrylate, from 0.1 to 1.0 weight percent phthalic arlhydride and from 0.1 to 0.5 weight percent hydroquinone.
The invention includes the bonds and splices manufactured by the method of the invention.
Detailed Description of the Invention In accordance with the present invention, many bonds may be made; however, a splice having particularly good characteristics, herein called the "butt" splice, can be made using the method of the invention.
The "butt" splice was derived from initial attempts at covering the cut in the cellulose product with a tape or patch material. This method produced a buL~y splice 219081~
that created problems in later operations, such as shirring. For this reason, a smaller, less buLky splice was desired. The "butt" splice method took much testing as it was found that the exact amount of Cyanoacrylate adhesive placed in very specific areas, on the splicing material, was critical.
The "butt" type splice is made by precutting a film material such as a hydrophilic material capable of being moisturized to between 30% and 60% water content. Examples of this material could be reinforced or unreinforced cellulose type products. This material should be cut wide enough to cover all glue patterns, e.g. ll/2 to 4 inches in width with the length being determined by the code size being spliced together.
The film material is then premoisturized to a moisture content of between 30%
and 60%. Free water on the surface should be removed to reduce the chance of theadhesive curing before the splice can be completed.
The moisturized film material can then be placed on a folding device that will enable the film material to be folded over the product, e.g. wet cellulose, being spliced together.
The adhesive is then either manually or automatically applied to the film material in a predetermined location, e.g. six beads approximately 1/64" to 1/32" in width. The location (distance apart l/2" to 2l/2") of the two beads running longitudinal with the wet product being spliced varies depending on the casing diameter. The four beads running across the cellulose product being spliced should be consistent (distance apart 1/4'' to l/2") for all sizes but the length of the beads vary from one inch to three inches.
219û81~
The ends of the two, e.g. cellulose, casing pieces are "butted" together between the two inner cross beads of adhesive, on the film material. This step can be either m~m1~l or automated.
With the aid of the folding device the film material is then folded over the 5 "butted" ends, of cellulose product, m~king an airtight seal.
The completed splice is then removed from the folding device, either m~ml~lly or automatically, and allowed to continue through the process.
The "butt" type method also allows the splice to remain in the dried, reeled cellulose product until further processing is desired.
The "butt" splice of the invention has been found to be water and air tight.
A layout for m~king the "butt" splice 10 can be seen in Figure 1 where ends 12 and 14 of separate tubular sections 16 and 18 are abutted on the surface 20 of separate film material 22. The adhesive used in the invention is laid out in transverse beads 24, and longitudinal beads 26 and 28 upon surface 20. Film material 22 is then folded 15 around ends 12 and 14 along fold line 30 to form the butt splice. The finished "butt"
splice may be seen in Figure 2.
In m~king butt splices as described above, numerous ethyl cyanoacrylate adhesives were used with results as described in the table below.
~1908~4 TABLE
ADHESIVE VISCOSITY (cps) RESULT
Loctite* 405 300 Good Adhesion/Gas Tight Loctite 498 700 Good Adhesion/Gas Tight Henkel* T-500 500 Good Adhesion/Gas Tight Permabond* 795 500 GoodAdhesion/Gas Tight Permabond 792 75 Not Good/No Bead Control Loctite 401 100 Not Good/No Bead Control Henkel T-1500 1500 Not Good/Slow Cure Loctite 410 3500 Not Good/Slow Cure 15 * Loctite is a trademark of Loctite Corporation.
Henkel is a trademark of Henkel Corporation.
Permabond is a trademark of National Starch Chemical Company.
Claims (11)
1. A method for adhering tubular casing material containing at least 25 weight percent water, during the process of its manufacture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from about 250 to about 1000 cps, to a surface selected from the casing and a separate film material, and squeezing the casing surface and the film material surfaces together to form a bond.
2. The method of Claim 1 wherein the film material is additional casing material.
3. The method of Claim 1 wherein the casing surface is the combined exterior surfaces surrounding two abutting open ends of the casing and the film material encompasses both exterior surfaces to form a splice between the open ends.
4. The method of Claim 1 wherein both the casing material and film material comprise regenerated cellulose.
5. The method of Claim 1 wherein the casing material comprises collagen and the film material comprises regenerated cellulose.
6. The method of Claim 1 wherein the casing material comprises collagen and the film material comprises collagen.
7. The method of Claim 1 wherein the adhesive has a viscosity of from about 300 to about 700 cps.
8. The method of Claim 1 wherein the adhesive comprises from 87 to 92 weight percent ethyl cyanoacrylate, from 5 to 10 weight percent polymethylmethacrylate, from 0.1 to 1.0 weight percent phthalic anhydride and from 0.1 to 0.5 weight percent hydroquinone.
9. The method of Claim 1 wherein the beads are applied to the surface of the film material.
10. A bond manufactured in accordance with the method of Claim 1.
11. A splice manufactured in accordance with the method of Claim 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/699,756 US5916644A (en) | 1996-08-20 | 1996-08-20 | Tubular casing with glued splice and method for its manufacture |
| US08/699,756 | 1996-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2190814A1 true CA2190814A1 (en) | 1998-02-21 |
Family
ID=24810771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002190814A Abandoned CA2190814A1 (en) | 1996-08-20 | 1996-11-20 | Tubular casing with glued splice and method for its manufacture |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5916644A (en) |
| EP (1) | EP0824867A1 (en) |
| CA (1) | CA2190814A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2156075B1 (en) * | 1999-05-19 | 2002-02-01 | Viscofan Ind | FLEXIBLE COLLAGEN BAG AND PROCESSING PROCESS. |
| US6310166B1 (en) | 1999-08-12 | 2001-10-30 | Closure Medical Corporation | Sterilized cyanoacrylate solutions containing thickeners |
| DE19957455A1 (en) * | 1999-11-29 | 2001-05-31 | Wolff Walsrode Ag | Process for the manufacture of couplings for filling machines for artificial sausage casings |
| DE10017172A1 (en) * | 2000-04-07 | 2001-10-11 | Hartmut Brettschneider | Process for making a casing of greater length for food |
| WO2002094024A2 (en) * | 2001-05-19 | 2002-11-28 | Cds-Crailsheimer Darmsortierbetrieb Gmbh | Method and device for producing a casing of a larger length for foodstuffs, particularly for sausages |
| ES2696283T3 (en) | 2014-07-07 | 2019-01-14 | Viscofan Sa | Machine removes-canutos and artificial wrapping manufacturing process using said machine |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2631509A (en) * | 1944-07-18 | 1953-03-17 | American Viscose Corp | Method for forming tubular articles |
| US3070483A (en) * | 1954-04-15 | 1962-12-25 | Swift & Co | Method of increasing the water resistance of adhesive bonds |
| US3640735A (en) * | 1968-10-18 | 1972-02-08 | Tee Pak Inc | Fibrous reinforced polyvinyl alcohol casings |
| US3917862A (en) * | 1974-04-08 | 1975-11-04 | Tee Pak Inc | Method for patching edible artificial collagen sausage casings |
| JPS5599980A (en) * | 1979-01-26 | 1980-07-30 | Toagosei Chem Ind Co Ltd | Adhesive composition |
| DE2903118A1 (en) * | 1979-01-27 | 1980-07-31 | Peter Kg Gerhard | HOSE CONNECTION, METHOD FOR THEIR PRODUCTION AND THEIR USE |
| DE2903116A1 (en) * | 1979-01-27 | 1980-07-31 | Peter Kg Gerhard | METHOD FOR PRODUCING A REVERSIBLE SOCKET CONNECTION AND THEIR USE |
| IE51863B1 (en) * | 1980-08-28 | 1987-04-15 | Loctite Corp | Additive for cyanoacrylate adhesives |
| DE3040279A1 (en) * | 1980-10-25 | 1982-06-16 | Hoechst Ag, 6000 Frankfurt | FOR FOODS, ESPECIALLY SAUSAGE PRODUCTS, TUBULAR SLEEVE SUITABLE WITH A STITCH SEAM, METHOD FOR THEIR PRODUCTION AND THEIR USE FOR THE PRODUCTION OF CURVED OR RING SHAPED SAUSAGES |
| JPS59102971A (en) * | 1982-12-03 | 1984-06-14 | Toagosei Chem Ind Co Ltd | Bonding method |
| US4610742A (en) * | 1984-11-15 | 1986-09-09 | Teepak, Inc. | Methods and materials for splicing tubular food casings |
| US4736775A (en) * | 1986-12-24 | 1988-04-12 | Viskase Corporation | Food casing splice having dual pressure sensitive tapes |
| DE3907951A1 (en) * | 1988-03-26 | 1989-10-05 | Hoechst Ag | Tubular packaging casing having a net casing enclosing it |
| US4842022A (en) * | 1988-03-31 | 1989-06-27 | Viskase Corporation | Spliced stuffable cellulosic food casing |
| DE8804813U1 (en) * | 1988-04-13 | 1988-06-09 | Hoechst Ag, 65929 Frankfurt | Tubular casing, in particular artificial sausage casing, with longitudinal axial adhesive tape |
| US5273482A (en) * | 1991-06-12 | 1993-12-28 | John H. Beckman | Reinforced casings for preparing dimensionally uniform processed food products with flat ends |
| US5750217A (en) * | 1993-01-25 | 1998-05-12 | Devro-Teepak, Inc. | Methods and materials for splicing tubular food casings |
-
1996
- 1996-08-20 US US08/699,756 patent/US5916644A/en not_active Expired - Fee Related
- 1996-11-20 EP EP96118588A patent/EP0824867A1/en not_active Ceased
- 1996-11-20 CA CA002190814A patent/CA2190814A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US5916644A (en) | 1999-06-29 |
| EP0824867A1 (en) | 1998-02-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |